Plugins in Gazebo 9 - ROS Melodic

asked 2020-04-08 03:53:01 -0500

Anton
13 ●2 ●2 ●6

updated 2020-04-10 13:18:21 -0500

Hello,

I am having trouble using plugins in Gazebo 9.0.0, that came pre-installed with ROS. The specific plugin I'm trying to make work is the Actor Collions plugin (Found here)

I have tried downloading the plugin files, but it doesn't seem to have any effect on the collision of the actor at all.

Is this due to Gazebo not being a source installation, or something else entirely?

Thanks in advance!

EDIT:
I followed the install tutorial here, to install Gazebo 9.13.
I then downloaded the example files from the OSRF bitckbucket using the 9.13 tag. I put the actor_collisions example folder in a workspace by itself and tried running "gazebo actor_collisions.world" from the terminal.
I have tried both with and without using catkin_make to build my workspace first. The result is the actor walking around among the objects, but there's still no collision.

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answered 2020-04-21 16:04:37 -0500

relffok
26 ●4 ●5 ●6

updated 2020-04-21 16:05:00 -0500

Hi, have you tried running it with the --verbose flag?

When I follow the steps you linked and run: gazebo ../actor_collisions.world --verbose I get the error that the plugin could not be found:

Failed to load plugin libActorCollisionsPlugin.so: libActorCollisionsPlugin.so: cannot open shared object file: No such file or directory

If this is your case, you might need to set the environment variable, to tell Gazebo where to look for your plugin, something like this: export GAZEBO_PLUGIN_PATH=$GAZEBO_PLUGIN_PATH:{path_to_your_ws}/actor_collisions/build and run the command again.

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Thank you! This fixed my problem.

Anton ( 2020-04-28 02:34:15 -0500 )edit

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answered 2020-04-08 11:26:54 -0500

chapulina
7504 ●2 ●23 ●54 https://louise.world/

As you can see on the changelog, for Gazebo major version 9, that plugin is only available from Gazebo 9.1.0. Follow the install instructions here to install the latest minor release.

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Thanks, that makes sense! As I'm using ROS Melodic, I would prefer to not use anything newer than Gazebo 9.x. What is the easiest way to install 9.13? When I use the command "sudo apt-get install gazebo9=9.13.0", i get an error that says this version was not found

EDIT: "sudo apt-get install gazebo9=9.13.0-1*" worked. Will test if this solves my initial problem

Anton ( 2020-04-09 03:41:16 -0500 )edit

Upgrading to 9.13 did not fix the issue. I downloaded the example files from the 9.13 commit on Bitbucket (https://bitbucket.org/osrf/gazebo/com...) so I think the files are correct...

Anton ( 2020-04-09 04:28:53 -0500 )edit

Oh no :/ Could you update the question with steps to reproduce the issue and the error output you're seeing?

chapulina ( 2020-04-09 16:16:17 -0500 )edit

Yeah :/ I have updated the question, looking forward to your response :)

Anton ( 2020-04-10 13:19:04 -0500 )edit

Hello chapulina, do you by chance have an update?

Anton ( 2020-04-21 04:31:52 -0500 )edit

Did you follow these instructions? Also, does running with --verboseprint any errors? https://github.com/osrf/gazebo/blob/g...

chapulina ( 2020-04-21 21:40:58 -0500 )edit

Thank you, your link along with relffok's answer solved my issue :)

Anton ( 2020-04-28 02:33:17 -0500 )edit

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